Ported StringFormatter from old project and created some tests.

Configured:
  - Dependencies
  - TypeScript
  - Gulp

Author: giancarlo-dm

.gitignore

@@ -1,3 +1,6 @@
+# Jetbrains IDE
+.idea
+
 # Logs
 logs
 *.log

.npmignore

@@ -0,0 +1,13 @@
+.github
+src
+test
+gulpfile.js
+tsconfig.json
+.travis.yml
+.gitignore
+.idea
+.iml
+.vscode
+.directory
+.DS_Store
+Thumbs.db

gulpfile.js

@@ -0,0 +1,46 @@
+"use strict";
+
+const gulp = require("gulp");
+const gulpTypescript = require("gulp-typescript");
+const del = require("del");
+
+const typescriptProject = gulpTypescript.createProject("tsconfig.json", {
+	removeComments: true
+});
+const typescriptDeclarationProject = gulpTypescript.createProject("tsconfig.json", {
+	declaration: true,
+	noResolve: false,
+	emitDeclarationOnly: true,
+	removeComments: false
+});
+
+function clean() {
+
+	return del(["dist"]);
+}
+
+function build() {
+
+	return gulp.src(["src/**/*.ts", "!src/**/*.spec.ts"])
+		.pipe(typescriptProject())
+		.on("error", function(err) {
+			console.error(err);
+			process.exit(1);
+		})
+		.pipe(gulp.dest("dist"));
+}
+
+function buildDeclaration() {
+
+	return gulp.src(["src/**/*.ts", "!src/**/*.spec.ts"])
+		.pipe(typescriptDeclarationProject())
+		.on("error", function(err) {
+			console.error(err);
+			process.exit(1);
+		})
+		.pipe(gulp.dest("dist"));
+}
+
+const buildTask = gulp.series(clean, build, buildDeclaration);
+
+exports.default = buildTask;